/Engine/Source/Runtime/Engine/Classes/Animation/AnimSet.h
Find a mesh linkup table (mapping of sequence tracks to bone indices) for a particular SkeletalMesh If one does not already exist, create it now.Indexof Linkup between mesh and animation set.
virtual int32 GetMeshLinkupIndex ( class [USkeletalMesh](API\Runtime\Engine\Engine\USkeletalMesh) * SkelMesh )